Global Patent Index - EP 0990892 B1

EP 0990892 B1 20071212 - CT-Method using a conical beam, and CT Apparatus

Title (en)

CT-Method using a conical beam, and CT Apparatus

Title (de)

Computertomographie-Verfahren mit kegelförmigen Strahlenbündel, und Computertomograph

Title (fr)

Méthode de tomographie assistée par ordinateur utilisant un faisceau cônique, et dispositif de tomographie

Publication

EP 0990892 B1 20071212 (DE)

Application

EP 99203139 A 19990924

Priority

DE 19845133 A 19981001

Abstract (en)

[origin: EP0990892A2] Measurement data are rebinned to number of groups, each group has several levels parallel to each other and to axis of rotation. Each group contains one beam section (411-415). Rebinned data of each group is one-dimensional filtered in direction vertical to direction of levels. Spatial distribution of absorption is reconstruction by back projection of filtered data of several groups.

IPC 8 full level

A61B 6/03 (2006.01); G01N 23/04 (2006.01)

CPC (source: EP)

G01N 23/046 (2013.01); A61B 6/027 (2013.01); G01N 2223/419 (2013.01); Y10S 378/901 (2013.01)

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 0990892 A2 20000405; EP 0990892 A3 20020828; EP 0990892 B1 20071212; DE 19845133 A1 20000406; DE 59914576 D1 20080124; JP 2000107167 A 20000418; US 6285733 B1 20010904

DOCDB simple family (application)

EP 99203139 A 19990924; DE 19845133 A 19981001; DE 59914576 T 19990924; JP 27937299 A 19990930; US 40879399 A 19990930